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About Don Dingee

An experienced strategic marketer and editorial professional, and an engineer by education, Don is currently a blogger, speaker, and author on social computing topics, and a marketing strategy consultant. He's had previous gigs at Embedded Computing Design magazine, Motorola, and General Dynamics.

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LTE and the Spectrum Deficit - Are Femtocells the Solution?

Posted September 06, 2011 10:18 AM by dondingee

I had a couple people challenge me in recent days on my spectrum deficit post, saying that femtocells should take care of this . . . right?

Femtocells do a couple of things for long-term evolution (LTE), an effort to develop advanced wireless mobile radio technology that will succeed current 3G WCDMA / HSDPA / HSUPA technology.

Image courtesy of femtoforum.org

So here's what femtocells do.

1) They improve signal strength where it's marginal - inside buildings in particular.

2) In the end game, the idea is to cut up relatively large areas covered by a single basestation and subdivide it into more femtocells, meaning fewer users per femtocell and more available opportunity for each user to connect.

But here's what femtocells don't do:

1) They don't provide more spectrum.

2) They don't increase spectral efficiency. That's determined by the encoding.

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Re: LTE and the Spectrum Deficit - Are Femtocells the Solution?

09/06/2011 8:46 PM

What was the rationale for the prefix naming of these "cells" (micro-, pico-, and femto-)?

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